{"product_id":"oem-goodman-50-in-wc-pressure-switch-for-gmv91155dxba-11177114","title":"OEM Goodman -.50 in WC Pressure Switch for GMV91155DXBA — 11177114","description":"\u003ch2\u003eGoodman 11177114 Pressure Switch (-.50\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe Goodman 11177114 is a genuine OEM negative-air pressure switch engineered specifically for the \u003cstrong\u003eGMV91155DXBA\u003c\/strong\u003e 96% AFUE two-stage variable-speed gas furnace and compatible Goodman\/Amana models. It monitors inducer draft and combustion airflow, closing at a nominal -.50 inches of water column to confirm safe venting before the ignition sequence begins. A failed or drifting switch is one of the most common causes of a furnace that clicks, tries to start, then locks out.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSet point: -0.50 in. WC (water column)\u003c\/li\u003e\n\u003cli\u003eAction: Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003eFunction: Combustion\/inducer draft proving\u003c\/li\u003e\n\u003cli\u003eFit: Goodman GMV91155DXBA and select two-stage 96% AFUE furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 11177114\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis listing is the \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e unit — factory calibrated to the exact -.50\" set point and built with the original diaphragm and terminal spacing. Aftermarket generics are lower cost but often ship with wider tolerances that can cause nuisance lockouts on two-stage boards. For a safety component, we recommend OEM.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate.\u003c\/strong\u003e Two spade terminals and one or two mounting screws, plus a silicone pressure hose. Expect 15–25 minutes. Always shut off power and gas before servicing. If unsure, consult a licensed HVAC technician.\u003c\/p\u003e\u003cp\u003eBacked by our fitment guarantee for the GMV91155DXBA. Questions? Contact info@nationalhvacparts.com.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058172641651,"sku":"GOODMAN-12715","price":76.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-50-in-wc-pressure-switch-for-gmv91155dxba-11177114","provider":"National HVAC Parts","version":"1.0","type":"link"}